| Reference number | NLB/53/144 |
| Alternative reference number | NLB/53 p96 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to T. Clark Esq., 96 Mildmay Road, N. |
| Date | 9 May 1916 |
| Description | 'Dear Sir,
In reply to your letter recieved this morning, Sir John Mackenzie Davidson has made no statement here with regard to the methods of centering the X-ray tube. Possibly the lecture you refer to was given at the Royal Institution.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |